Reference Signal System Adjustment; 27 Mhz Vco Free-Running Adjustment - Sony HDC-P50 Service Manual

5-7. Reference Signal System Adjustment

5-7-1. 27 MHz VCO Free-Running Adjustment

Equipment: Frequency counter
Test Point: GL/SYNC connector
Preparation
1. Connect a frequency counter to the GL/SYNC terminal with a BNC cable.
Note
Turn on power switch of this unit before starting adjustments, and warm up the unit for about 10 minutes.
Procedure
1. Open the following page on the camera setup menu.
MENU：SERVICE
PAGE：VCO ADJUST
<VCO ADJUST>
VCO SDCK
STORE FILE
VCO ADJSUT
2. Set the cursor at [VCO ADJUST : EXEC] and press the MENU SEL knob/ENTER button.
3. A message "ADJUST START?" appears. Set the cursor at [YES] and press the MENU SEL knob/ENTER button.
4. Adjust the value of [VCO SDCK] so that the frequency output from the GL / SYNC terminal becomes the specification.
Specification: 13,500,000 ±25 Hz
5. After this adjustment is completed, set the cursor at [STORE FILE : EXEC] and press the MENU SEL knob/ENTER button.
6. A message "SAVE OK?" appears. Set the cursor at [YES] and press the MENU SEL knob/ENTER button.
7. Turn off the power.
S16 TOP
: 132
: EXEC
: EXEC
102